(a)

Turn the ignition switch to "OFF" position.

(b)

Connect scan tool to the datalink connector.

(c)

Turn off the A/C switch.

(d)

Turn the ignition switch to "ON" position.

(e)

Select in sequence: Engine / Data List / Engine Coolant
Temperature.

(f)

Observe the temperature measured by the engine coolant
temperature sensor. When the engine is completely cooled
down, this temperature should be slightly higher than the
ambient temperature.

Confirmation shows the temperature is normal.

No

Temperature sensor or circuit is faulty. Refer
to 

2.2.7.19

 

DTC P0117 P0118

Yes

Step 3

Remove and check the cooling fan high speed relay. Does the cooling fan still run?

No

Go to step 5

Yes

Step 4

Check and repair the circuit between high-speed cooling fan relay and cooling fan wiring harness connector
SCA16.

1413 12 1110

5

1

2

3

4

6

7

8

9

J

L

K

I

G

D

C

B

E

F

A

86

86

30

87

85

86

86

87

87

87

30

30

30

85

85

85

2

2

3

3

5

5

1

1

1

2

5 3

1

2

5 3

86

87

30

1

1

2

5
3

2

5
3

85

EF01

EF21

EF18

EF25

EF20

EF29

EF06

EF02

EF30

EF17

EF19

EF23

EF22

EF26

EF24

EF08

EF27

EF28

EF05

EF07

EF16

EF04

EF03

EF15

EF12

EF10

EF1

1

EF09

EF13

EF14

EF32

EF31

A

86

87

30

85

1

2

3

Cooling Fan Harness Connector CA16

FE02-7804b

(a)

Turn the ignition switch to "OFF" position.

(b)

Remove High-Speed cooling fan relay.

(c)

Disconnect cooling fan wiring harness connector CA16.

(d)

Check and repair the circuit between relay and connector
short to power supply.

Step 5

check cooling fan high speed relay.

Engine

Cooling System JL4G18-D

2-475

(a)

Measure resistance between relay terminal No.87 and
terminal No.30.

Standard Resistance: 10 kΩ or higher

Confirm whether the measured resistance is normal.

No

Replace the relay.

Yes

Step 6

Check high-speed relay A control circuit.

1

3

5

7

8

6

4

2

9

10

11

12

13

23

24

25

26

27

28

29

30

37

51

52

53

54

55

56

57

58

59

60

61

62

63

64

38

39

40

41

42

43

44

45

46

47

48

49

50

31

32

33

34

35

36

14

15

16

17

18

19

20

21

22

ECM Harness Connector EN01

1413 12 1110

5

1

2

3

4

6

7

8

9

J

L

K

I

G

D

C

B

E

F

A

86

86

30

87

85

86

86

87

87

87

30

30

30

85

85

85

2

2

3

3

5

5

1

1

1

2

5 3

1

2

5 3

86

87

30

1

1

2

5
3

2

5
3

85

EF01

EF21

EF18

EF25

EF20

EF29

EF06

EF02

EF30

EF17

EF19

EF23

EF22

EF26

EF24

EF08

EF27

EF28

EF05

EF07

EF16

EF04

EF03

EF15

EF12

EF10

EF1

1

EF09

EF13

EF14

EF32

EF31

A

86

87

30

85

FE02-7806b

(a)

Turn the ignition switch to "OFF" position.

(b)

Disconnect ECM harness connector EN01.

(c)

Remove high-speed cooling fan relay A.

(d)

Test continuity between high-speed cooling fan relay A
terminal No.86 and ECM harness connector EN01 terminal
No.52.

(e)

Measure resistance between high-speed cooling fan relay A
terminal No.86 and a reliable ground. Check whether the
circuit is short to ground.

Standard Value:

Test Items

Specified Value

Relay A (86)-EN01 (52)

Less than 1 Ω

Relay A (86) - Reliable Ground

10 kΩ or higher

Is the measured values specified value?

No

Circuit between relay A terminal No.86 and
EN01 terminal No.52 is short to ground.

Yes

Step 7

Check ECM circuit.

(a)

Check whether ECM power supply circuit is normal.

(b)

Check whether ECM ground circuit is normal.

No

Repair the faulty part.

Yes

Step 8

Replace ECM.

Next

Step 9

Diagnostic completed.

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Cooling System JL4G18-D

Engine

2.8.7.7 Thermostat Diagnostic

Step 1

Remove the thermostat. Refer to 

2.8.8.4

 

Thermostat Replacement

.

Next

Step 2

Soak the thermostat in water and heat the water.

FE02-7814b

(a)

Check the thermostat switch on temperature.

Standard Value: 82°C (179.6 ºF)

Is the thermostat switch on temperature normal?

No

Replace the thermostat. Refer to

2.8.8.4

 

Thermostat Replacement

Yes

Step 3

Check the thermostat valve lift travel distance.

A

FE02-7813b

Standard Valve Lift: 10 mm (0.39 in) or higher at 95°C(203 ºF)

Confirm whether the valve lift is normal.

No

Replace the thermostat. Refer to

2.8.8.4

 

Thermostat Replacement

Yes

Step 4

Check whether the thermostat is completely switched off at low temperature.

When the thermostat temperature islower than 77°C (171 ºF),
check whether the thermostat is completely switched of.

No

Replace the thermostat. Refer to

2.8.8.4

 

Thermostat Replacement

Engine

Cooling System JL4G18-D

2-477

Yes

Step 5

Thermostat normal.

2.8.7.8 Engine Overheating

Warning!

Refer to "Cooling System Service Warning" in "Warnings and Notices".

Step 1

Is there engine coolant loss?

Yes

Add engine coolant.

No

Step 2

Is the engine coolant concentration inadequate?

Yes

Use "Geely Genuine ultra-long-acting engine
coolant" or the same level of high-quality
ethylene glycol base engine coolant, model or
standard number: comply with SH0521.

No

Step 3

Check whether there is dust, leaves or insects and other debris at the radiator front?

Yes

Clean up the front of the radiator.

No

Step 4

Check coolant pipes, pumps, engine coolant inlet components and radiator. Check for blockage and cylinder
head gasket leaking.

Yes

Replace any damaged parts.

No

Step 5

Connect scan tool, with the data flow showing the engine coolant temperature reaches 95°C (203 ºF ). Check
the radiator inlet and outlet hoses coolant temperature. There should be no temperature difference. Is the
temperature difference big?

Yes

1. Check whether the thermostat is working
properly. 2. Check whether there is radiator
blockage.

No

Step 6

Use ignition timing gun to check whether the ignition is too late.

Yes

Check engine ignition timing. Carry out ECM
diagnostic.

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Cooling System JL4G18-D

Engine